Title (en)

VISION EXAMINATION DEVICE

Title (de)

VORRICHTUNG ZUR UNTERSUCHUNG DER SEHKRAFT

Title (fr)

DISPOSITIF D'EXAMEN DE LA VUE

Publication

EP 3692889 A4 20200909 (EN)

Application

EP 18864830 A 20180912

Priority

• JP 2017195447 A 20171005
• JP 2018033824 W 20180912

Abstract (en)

[origin: EP3692889A1] A visual sense examination device includes: a beam source 11 that emits a visible laser beam 50a and an infrared laser beam 50b; an image projection optical system 14 that includes a scanning unit 20 oscillating at a first frequency to two-dimensionally scan the visible laser beam 50a, and that emits the visible laser beam 50a to a retina 74 of a subject to project an image on the retina 74 of the subject; an infrared beam optical system 15 that includes a scanning unit 22 oscillating at a second frequency different from the first frequency, to two-dimensionally scan the infrared laser beam 50b, and that emits the infrared laser beam 50b to the retina 74 of the subject; a detector 40 that detects the infrared laser beam 50b reflected by the retina 74 of the subject; and a control unit 30 that controls the emission of the visible laser beam 50a and the infrared laser beam 50b from the beam source 11, and detects a state of a fundus of the subject from an output signal of the detector 40.

IPC 8 full level

A61B 3/10 (2006.01); A61B 3/024 (2006.01); A61B 3/12 (2006.01)

CPC (source: EP US)

A61B 3/0025 (2013.01 - US); A61B 3/0058 (2013.01 - US); A61B 3/0091 (2013.01 - US); A61B 3/024 (2013.01 - US); A61B 3/1025 (2013.01 - EP US); A61B 3/1225 (2013.01 - US)

Citation (search report)

• [A] US 5620000 A 19970415 - ZINSER GERHARD [DE], et al
• [A] EP 0738123 A1 19961023 - VELDE FRANS J VAN DE [BE]
• [A] US 2007291277 A1 20071220 - EVERETT MATTHEW J [US], et al
• See references of WO 2019069648A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3692889 A1 20200812; EP 3692889 A4 20200909; EP 3692889 B1 20240103; CN 111163682 A 20200515; CN 111163682 B 20220603; JP 2020099736 A 20200702; JP 6677859 B2 20200408; JP WO2019069648 A1 20200123; US 11717157 B2 20230808; US 2020229694 A1 20200723; WO 2019069648 A1 20190411

DOCDB simple family (application)

EP 18864830 A 20180912; CN 201880064469 A 20180912; JP 2018033824 W 20180912; JP 2019546602 A 20180912; JP 2020044352 A 20200313; US 201816650798 A 20180912